• WordNet 3.6
    • adj formidable inspiring fear "the formidable prospect of major surgery","a tougher and more redoubtable adversary than the heel-clicking, jackbooted fanatic"- G.H.Johnston","something unnerving and prisonlike about high grey wall"
    • adj formidable extremely impressive in strength or excellence "a formidable opponent","the challenge was formidable","had a formidable array of compositions to his credit","the formidable army of brains at the Prime Minister's disposal"
    • ***
Webster's Revised Unabridged Dictionary
    • a Formidable Exciting fear or apprehension; impressing dread; adapted to excite fear and deter from approach, encounter, or undertaking; alarming. "They seemed to fear the formodable sight.""I swell my preface into a volume, and make it formidable , when you see so many pages behind."
    • ***
Century Dictionary and Cyclopedia
    • formidable Exciting or fitted to excite fear or apprehension; hard to deal with; difficult to overcome, perform, or the like: applied to persons or things possessing such strength, power, or capability, or presenting such obstacles to action or progress, as to discourage effort or inspire dread of failure.
    • formidable Synonyms Deterrent, discouraging, fearful, appalling, redoubtable.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Formidable for′mi-da-bl causing fear: adapted to excite fear
    • ***


  • George Washington
    “Discipline is the soul of an army. It makes small numbers formidable; procures success to the weak, and esteem to all.”
  • George Eliot
    “You have such strong words at command, that they make the smallest argument seem formidable.”
  • French Proverb
    French Proverb
    “People always make the wolf more formidable than he is.”
  • Nelson Mandela
    Nelson Mandela
    “A good head and a good heart are always a formidable combination.”
  • Marlene Dietrich
    “Courage and grace is a formidable mixture. The only place to see it is the bullring.”
  • Proverb
    “An army of deer would be more formidable commanded by a lion, than an army of lions commanded by a stag.”


Webster's Revised Unabridged Dictionary
L. formidabilis, fr. formidare, to fear, dread: cf. F. formidable,
Chambers's Twentieth Century Dictionary
Fr.,—L. formidabilisformido, fear.


In literature:

Difficulties of another sort, more formidable, began to appear.
"The Story of the Cambrian" by C. P. Gasquoine
A formidable disturbing element he and his company would have been in the already unquiet community.
"A History of American Christianity" by Leonard Woolsey Bacon
He produced a cigar-case, and extracted a formidable torpedo-shaped Havana.
"Jill the Reckless" by P. G. (Pelham Grenville) Wodehouse
Here the resistance became very formidable.
"Through Three Campaigns" by G. A. Henty
We too seldom think how much we owe to those formidable savages.
"The War of Independence" by John Fiske
The whole constituted a most formidable position.
"South American Fights and Fighters" by Cyrus Townsend Brady
The host, Pridgin, my new master, was not a very formidable sort of person at first blush.
"Tom, Dick and Harry" by Talbot Baines Reed
The enemy very soon quitted the gate, and took to the more formidable work of attempting to scale the walls.
"Boycotted" by Talbot Baines Reed
The cellar was formidable below, and the stairs curved upwards into the formidable.
"Clayhanger" by Arnold Bennett
Their numbers kept increasing, till they formed a formidable band.
"On the Banks of the Amazon" by W.H.G. Kingston
The town itself is surrounded by walls and batteries which look not a little formidable at a distance.
"The Three Lieutenants" by W.H.G. Kingston
It is a formidable weapon, and it is very disagreeable to receive a blow from it on the shins.
"Ernest Bracebridge" by William H. G. Kingston
As originally laid these had been most formidable.
"The Gulf and Inland Waters" by A. T. Mahan
The cold climate and sterile soil of the Puna are formidable impediments to agriculture.
"Travels in Peru, on the Coast, in the Sierra, Across the Cordilleras and the Andes, into the Primeval Forests" by J. J. von Tschudi
In the face of so formidable an invasion, Maurokordatos took the field himself.
"A History of the Nineteenth Century, Year by Year" by Edwin Emerson
Oh, what a formidable list!
"Conversations on Chemistry, V. 1-2" by Jane Marcet
He lit a long black cigar, laid his formidable revolver on a knee, and began his vigil.
"The Pagan Madonna" by Harold MacGrath
War has diminished neither its horror nor its frequency, and man is still the most formidable enemy to man.
"Shelley, Godwin and Their Circle" by H. N. Brailsford
His scheme was formidable.
"The Land of the Miamis" by Elmore Barce
Catharine, not sorry to be relieved of so formidable a rival, was resolved that he should have no troublesome successor.
"History of the Rise of the Huguenots" by Henry Baird

In poetry:

'Tis true she won the premier prize;
It was of formidable size,
Ten million francs.
I know, because the man who sold
It to her splenically told
He got no thanks.
"Lottery Ticket" by Robert W Service
Nature, to these divided friends
Now in their separate lot attends;
Time decks them as he flies;
The child, a graceful stripling grows,
And freedom on the snake bestows,
A formidable size.
"The Grateful Snake" by William Hayley
Serpent. To pleasures and to joys,
Ye formidable dark sulphureous warriors!
Let Fame to heaven now on her raven plumes
Direct her rapid flight,
Of man's completed crime The mournful messenger.
"Adam: A Sacred Drama. Act 3." by William Cowper
Next to the English Channel sail;
See, where opposing tides prevail,
And dash against the rocks,
(Those formidable, which are found
A few miles off from Plymouth sound)
With oft repeated shocks.
"Enigma XXII." by Elizabeth Hitchener
And added to these obstacles was the most formidable of all—
A broad deep ditch that ran along the wall,
Which the storming party not even guessed at before;
But this barrier the British soon did climb o'er.
"The Capture of Lucknow" by William Topaz McGonagall
I don't know one damned butterfly from another
my ignorance of the stars is formidable,
also of dogs & ferns
except that around my house one destroys the other
When I reckon up my real ignorance, pal,
I mumble "many returns"—
"Dream Song 265: I don't know one damned butterfly from another" by John Berryman

In news:

Gators brace for LSU's formidable front.
A Merged EADS-BAE Systems Create A Formidable Competitor For Boeing.
Wildcats ready for pair of formidable opponents.
Talented Vacaville High School football team ready for formidable schedule.
UW Huskies face formidable foes in first half of 2012 season.
A Formidable Foundation of Trust.
The Joy Formidable preps new album, Putin hates on punk and Ms Melodie passes on.
Ritzy Bryan of the Joy Formidable talks with Rolling Stone about the band's forthcoming album.
The Joy Formidable Promise 'Great Guitar Moments' on Next Album.
Ritzy Bryan of the Joy Formidable performs at Terminal 5 in New York.
The formidable James Carpenter portrays Director Hummel in 'Ghost Sonata.
While two formidable women will draw viewers to "The Iron Lady ," only one actually gets the treatment she deserves.
Ken Allen is a formidable and longtime public employee union leader in Oregon.
Hilary Mantel's novels 'Every Day Is Mother's Day' and 'Vacant Possession' show her formidable talent even as she's learning her craft.
If Curiosity succeeds, according to Marshall, it will mean many formidable challenges have been met.

In science:

Such a task, however, appears to be of formidable logistic complexity, given that there are thirteen linearly independent tensorial structures, with their corresponding formfactors.
Gluon mass generation without seagull divergences
Whether it will be possible to decide about the stable equivalence of the factorizations which these formidable calculations will yield, it is a quite open question.
Moduli spaces of surfaces and monodromy invariants
Still the requirements on the accuracy of photo-z’s for upcoming surveys are formidable.
PHAT: PHoto-z Accuracy Testing
Given the formidable importance of quality management in today’s computer industry the question arises to what extent quality management can be analyzed and assessed on the basis of an ICCL perspective.
Informal Control code logic
These dynamical processes are desirable in real world, but the construction of exact solution is a formidable task since we cannot resort to the 1st-order BPS equations.
Black hole solutions in string theory
To analyze their dynamical evolution in the process of gravitational collapse is still a formidable theoretical challenge due to the interconnections of general relativity and all the relativistic field theories.
Fundamental physics from black holes, neutron stars and gamma-ray bursts
Quantifying the excitation of quasinormal modes for generic initial data is a formidable technical problem [44, 149], but numerical merger simulations allow sensible estimates of the relative quasinormal mode amplitudes [91, 139].
Numerical simulations of black-hole binaries and gravitational wave emission
In place of giving a general proof with formidable notation, we satisfy ourselves with an illustration.
Differential Geometry of Microlinear Frolicher Spaces IV-1
Given that electrons in the solar atmosphere have gyroradii of order a centimeter and so are strongly tied to the guiding magnetic field lines, this presents formidable difficulties for current closure of the accelerated electron streams.
High-Energy Aspects of Solar Flares: Overview of the Volume
These are formidable tasks for those lacking a deep knowledge of atomic physics, and yet results may depend strongly on such choices.
How to Make an Atomic Blog in Your Own Kitchen. Summary of the Workshop: Uncertainties in Atomic Data and How They Propagate in Chemical Abundances
Neutrinos are a possible alternative choice of particle since they are now known to have a very small mass, but the weak nature of their interactions introduces formidable experimental difficulties .
Graphene tests of Klein phenomena
An important question, however, is if one can build a consistent perturbation theory for massless higher spin fields on Minkowski space-time in order to obtain a nontrivial S–matrix, since the most formidable problems in the higher spin gauge theory on flat background start from four point interactions.
On Tensorial Spaces and BCFW Recursion Relations for Higher Spin Fields
In the decoupling limit, these mass splittings are of O(m2 Z /mA0 ), which presents a formidable challenge to the design of future Higgs searches.
Weakly-Coupled Higgs Bosons and Precision Electroweak Physics
To assure that the nodal lines of two standing waves (13) intersect exactly is again a formidable challenge - but if achieved it would permit to observe the effects of strong and fast rotating magnetic fields in micro scale.
Are there Floquet Quanta?
Determination of the equation of state as well as the two viscosities for temperatures ranging from MeV to TeV and more is a formidable task.
High Temperature Matter and Gamma Ray Spectra from Microscopic Black Holes